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  <meta charset="UTF-8">
  <style>
    body { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 100vh; margin: 0; background: #fff; }
    .logo { width: 100px; height: 100px; background: #0078d7; border-radius: 8px; }
    .text { margin-top: 20px; font-size: 16px; color: #333; }
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<body>
  <div class="logo"></div>
  <div class="text">融合调度平台 加载中...</div>
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